Product Overview
This is a high-precision custom industrial 1*2 cavity injection mold, professionally designed for manufacturing 3-position surface mount box back covers using ABS plastic. Built with premium 2083 ESR mold steel (HRC 48-50) and featuring fully textured cavity and core surfaces, this 2-plate mold delivers exceptional durability, consistent surface quality, and stable long-term production performance. Equipped with a large submarine gate system, it ensures clean, hidden feeding without visible gate marks on finished parts, making it ideal for electrical junction box applications. Optimized specifically for ABS material’s molding characteristics, the mold effectively addresses common issues like warpage, shrinkage, and surface blemishes, providing a reliable solution for mass production of industrial electrical enclosure components.
Core Product Specifications
| Specification Item | Detailed Parameters |
| Mold Cavity | 1*2 Cavity, 2 parts per cycle for balanced production efficiency |
| Applicable Material | ABS (Acrylonitrile Butadiene Styrene) plastic |
| Mold Structure | 2-Plate Mold design, simple and reliable structure for consistent performance |
| Gating System | Large Submarine Gate (tunnel gate), hidden feeding, no visible gate marks on part surface |
| Mold Steel | 2083 ESR Mold Steel (HRC 48-50), high wear resistance and corrosion resistance |
| Surface Finish | Textured Cavity & Core, delivering uniform matte surface for electrical enclosure parts |
| Shrinkage Rate | 1.005 (mold shrinkage factor calibrated for ABS material) |
| Molded Application | 3-position surface mount box back cover / electrical junction box components |
| Production Compatibility | Standard injection molding machines, supporting automatic/semi-automatic production |
Advanced Mold Design & Manufacturing
1. 1*2 Cavity Layout & 2-Plate Structure
The 1*2 cavity design balances production efficiency with molding precision, ensuring identical melt flow and cooling conditions for both parts in each cycle. The classic 2-plate mold structure is chosen for its reliability, simplicity, and low maintenance requirements, making it ideal for continuous industrial production of standard electrical components.
2. Premium 2083 ESR Mold Steel Construction
Constructed from high-grade 2083 ESR mold steel and heat-treated to HRC 48-50, this mold offers exceptional wear resistance, thermal stability, and corrosion resistance. This makes it particularly suitable for ABS materials, ensuring long service life and consistent dimensional accuracy even after millions of shots.
3. Large Submarine Gate System
The large submarine gate design is specifically optimized for the back cover geometry, feeding material through hidden channels to leave no visible marks on the exterior surface. This ensures the finished part meets clean aesthetic requirements for electrical enclosures while enabling fast, balanced filling to minimize internal stress and warpage in ABS parts.
4. Textured Cavity & Core Surfaces
Both the cavity and core are finished with a standard texture, delivering a consistent matte appearance that hides minor molding marks and provides a durable, scratch-resistant surface. This texture also improves mold release, reduces ejection marks, and enhances the overall quality of the finished enclosure back cover.
5. Calibrated Shrinkage & Cooling System
The mold is engineered with a calibrated shrinkage rate of 1.005, perfectly matched to ABS material’s characteristics. Strategically placed cooling channels ensure uniform and rapid cooling across the entire part, preventing uneven shrinkage, sink marks, and warpage, while maintaining tight dimensional tolerances on critical mounting features.
![3-position Surface Mount Box Back Cover Plastic Injection Molding]( "3-position Surface Mount Box Back Cover Plastic Injection Molding")
Material & Application Advantages
ABS plastic is widely used in electrical enclosures due to its excellent impact resistance, dimensional stability, and ease of molding. This custom mold is purpose-built to leverage these properties:
The 2083 ESR steel construction resists wear and maintains precision during long production runs.
The textured finish provides a professional appearance while hiding minor surface imperfections.
The submarine gate system ensures clean, mark-free parts suitable for visible electrical applications.
This mold is ideal for manufacturing 3-position surface mount box back covers, electrical junction enclosures, and other industrial plastic components requiring consistent quality and durability.
Quality Assurance & After-Sales Service
All molds are manufactured in strict accordance with international industrial standards, undergoing rigorous testing including steel hardness verification, dimensional accuracy checks, surface texture inspections, and mold trial runs. Every mold is validated with sample production before delivery to ensure stable molding performance and part quality. We provide comprehensive after-sales support, including mold maintenance guidance, technical troubleshooting, and modification services, to ensure your production runs smoothly.
